Home / 1,875.36-2,591.52-1,318.08

Finding the Fourth Proportional to 1,875.36, 2,591.52 and 1,318.08

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Solution

The fourth proportional to 1,875.36, 2,591.52 and 1,318.08 is: 1,821.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,875.36 : 2,591.52 = 1,318.08 : x
  2. Step 2: Convert to fraction form
    1,875.36/2,591.52 = 1,318.08/x
  3. Step 3: Cross multiply
    1,875.36x = 2,591.52 × 1,318.08
  4. Step 4: Simplify right side
    1,875.36x = 3,415,830.68
  5. Step 5: Solve for x
    x = 3,415,830.68/1,875.36
  6. Step 6: Final answer
    x = 1,821.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.